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Pressure needed for a die grinder

Published Categorized as Air Tools, What Size Air Compressor No Comments on Pressure needed for a die grinder

by john everett
(westminster MD)

Pressure needed for a die grinder rated at 4cfm @ 90 psi? I bought a craftsman pro compressor rated at 5.8 cfm @ 90 psi My die grinder requires 4cfm @ 90 psi and I keep running out of air .

Craftsman Pro 27 gallon air compressor
Craftsman Pro 27 gallon air compressor

Should the compressor not be able to keep up with the use?

Compressor has a 27 gal tank

Any help would be greatly appreciated

John, when was the last time you got the mileage that the car EPA estimates said you would?

It’s the same with air compressors, as far as I’m concerned.

If you are running an extension cord to the compressor, don’t. That will be bleeding off motor power.

The compressor is dual voltage. If you can, and you are not, try running it with 240 volts instead of 120 volts.

Dial down the pressure to the die grinder if you can. That will help extend the air supply.

The specifications for this compressor, right from the Sears page are:

Drive Type: Belt Drive
Voltage: 120/240 volts
Horsepower: 1.9 hp
SCFM Delivery:
SCFM Delivery At 40 psi: 7.2 SCFM
SCFM Delivery At 90 psi: 5.8 SCFM
Compressor Tank Capacity: 27 gal.
Compressor Tank Pump Style: Oil Lube
Maximum Compressor psi: 150 psi
Compressor Tank Type: Vertical
Lubrication Type: Oil lubricated
Tank Style: Vertical
Type: Portable
Product Type: Air Compressors & Inflators

Despite those specs, sorry John… even though it says it is, I don’t believe the compressor is big enough to run your die grinder satisfactorily.

Other people’s thoughts?

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By Bill Wade

About Air Compressors has been helping folks with their Air Compressor Problems since 2002 online. We're a community of DIY and Compressed Air professionals who are keen to support everyone across the globe with their air compressor issues and troubleshooting. Whether you're trying to identify an old air compressor, or troubleshoot an error code on a sophisticated new industrial air compressor - the community at About-Air-Compressors.com is here to help you

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